Green's function theory for the one-dimensional antiferromagnet with antisymmetric exchange |
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| Authors: | CE Zaspel |
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| Institution: | Physik-Institut, Universität Zürich, CH 8001 Zürich, Switzerland |
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| Abstract: | The spin wave spectrum for the one-dimensional antiferromagnet with antisymmetric exchange is obtained from second order Green's function theory. There is a noticeable asymmetry in the spin wave dispersion curve, which has an effect on the static correlation function and the correlation length. |
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